Résumé. Le maintien de la qualité et de la fiabilité de bases de connaissances RDF du Web Sémantique est un problème courant. De nombreuses propositions pour l’intégration de « bonnes » données ont été faites, se basant soit sur les ontologies de ces bases, soit sur des méta-données additionnelles. Dans cet article, nous proposons une approche originale, basée exclusivement sur l’étude des donn...

The aim of this note is to indicate that nonparametric orthogonal series estimators of probability densities retain the mean integrated square error (MISE) consistency when observations are grouped to the points of a uniform grid (prebinned). This kind of grouping is typical for computer rounding errors and may also be useful in data compression, before calculating estimates, e.g., using the FF...

In this paper we introduce an appealing nonparametric method for estimating the mean regression function. The proposed method combines the ideas of local linear smoothers and variable bandwidth. Hence, it also inherits the advantages of both approaches. We give expressions for the conditional MSE and MISE of the estimator. Minimization of the MISE leads to an explicit formula for an optimal cho...

Parmi mes recherches de supports de cours en ligne sur la toile, je conseillais le document de mon collègue Marc Grange de l’université de Lyon 2. Pourquoi ? Pour sa clarté et sa pédagogie et la mise en amont des concepts du modèle relationnel indépendamment des domaines d’applications, ici les sciences humaines et sociales. Ensuite, suit l’apprentissage, dans le cas du relationnel, du langage ...

A number of cardiovascular and pulmonary complications have been reported to occur occasionally after insertion of a total hip prothesis. Of the proposed causes of these reactions, the possibility of fat embolism has received considerable support. The increase in intramedullary pressure, produced by the mechanical compression of the femoral canal during the insertion of the stem, seems to be th...

In this paper, we consider an approach to updating Datalog neg databases containing two kinds of rules, namely query-rules and update-rules that can be seen as constraints. Update-rules are used to compute the side eeects of updates, and these side eeects act as exceptions to derivations through query-rules. Additionally, every fact to be inserted or to be deleted is stored in the database. In ...

book p.80. 4. Burkhart S. A unified biomechanical rationale for the treatment of rotator cuff tears : Debridement versus repair. In : Rotator Cuff Disorders. W. Z. Burkhead, ed. Williams & Wilkins, Baltimore, 1996, pp. 293-312. 5. Cofield R. H. Status of total shoulder arthroplasty. Arch. Surg., 1977, 112, 1088-1091. 6. Favard L., Nové Josserand L., Levigne C., Boileau P., Walch G. Anatomical a...

Many distributed database applications need to replicate data to improve data availability and query response time. The two-phase-commit protocol guarantees mutual consistency of replicated data but does not provide good performance. Lazy replication has been used as an alternative solution. In this case, mutual consistency is relaxed and the concept of freshness is used to measure the deviatio...